Base for plastic material



G. E. LAND BASE FOR /PLASTIC MATEMAL Filed'Maroh 7, 1929 INVENToR Oct. 20, 193L Patented Oct. `20, 1931 enouenn: LAND, or rrrrsrnnerarnnnsxnvnme, Ass'IeNoa'To H. n. Means conroRATIolmor PITTSBURGH; PENnsYLvANIA, A CORPORATION or PENNSYLVANIA 2 ment with, the backing.A 1 o base for plastic i ma- L lBASE yFoav rLAsTIc MATERIAL vapplicativa Yinea Marcar, v1929. sriaiNo. 345,109.3

My invention relates' tobasesj for plastic materials. and lmore particularlyto unitary bases for plastic materialsrcomprisingfa f a b` ric, generally metallic, anda backingsecuredr together and adapted for unitary application to supporting structures.

' In utilizing bases forplastic materialthe fabric should be completelyimbedded .in a

covering of plastic material so that Vwhen theV plastic material is hardenedthe fabric constitutes an `imbedded reinforcingunetwork. The backing serves to support the plasticy material before it hardens 'so that it adheres to 'the fabric and fills the meshes therein.l

Where the fabric is soy close tothe backing that the Vplastic material does not completely flow around andencase'the strands ofthe fabric,.the.`fabric lis liable to be eroded inuse: Y with a resultant weakeningand/or failure ofl they hardened plasticbody.V r

In accordance with 'well-known value of reinforcing members imbedded V-in al body.` of hardened' VplasticV materialgdejpends to a considerable extent uponthe location of the reinforcement relative to the'arefasof otherwise securing ,the bases to the support-l ing frames are liable' toY attach the bases to the frames in such manner that the fabrics are very close .to,' if not r`actual engage- Y I provide a un'tary j terials in whicha fabric and backing are se-k cured together byl a plurality of separate spacedsecuring means .passing through the backing. The outer 'portion of e'achfsecurf' ing means engages a surface of vthe/backing remote fromthe fabric and the otherfendis secured tothe fabric. IkEach"securingmeans isf also provided Withmeans engaging an in.-

ner surface of vthe .backing .frpositively lmaintaining a definite Ispacedv `rela-tion beu tween `the backingand the fabric.

" The backing comprises asheetv of material which may be ahmetallicsheet, vor a sheet of y t vegetable matter with or ,without reinforc? ing strips. f The reinforcing strips, Vwhen used, are placed against thefskeleton strncl. ture tok which plastic material is to be applied.

The reinforcingfstrips space the sheet fromf` the. supporting ystructure a distance lcorresponding to the" thickness of the laths ordinarilyused in buildingV structures yso that thevbase for plastic material may be appliedv i Y tostandagrd building frames without require' ing any yspecial framing or' positioning "of theframes to accommodate them to'use with such bases.

. certain features of represent application constitute improvements ove,11'the subiectp matter of my .co-pending application Serial.:

' Theaccompanying drawings illustrate cervtainpresent preferred embodiments vof the invention in which y n v jFigure 1 is a brokenface-.viewoffapor-`V tion of a base for plastic materialsimbedded in a body of materialt `3getherl with support-l `ing members;-

intersecting,strands 4, and f5 defining open- Y ingsor meshes 6V therebetween, a `backing 7" i comprises a sheetv 8'and stiffeningmembersl),

andsecurin meanslO extending through the Y.

backing an engaging" the fabric 3. ,A posi-v and the fabric 3 is secured by providing positive kspacing means -11 therebetween.

One form of securing means 10 yis that a tive spaced relation between the backing ifl The opening 14C preferably fits the Wire or 3Vsjrately applying the backing and fabric; to"

nail tight enough to prevent the passage of plasticl material'tlirough the opening when the securing means isin place. Each Wire or nailis provided ,W'itha 'loop "lpassing' around one of the strands of the fabric, or

to Which-it may be Welded, ifdesired.-v Thef outer end. 16 ofv thewire .or nail is doubled- `back into engagement With the portion 13 with its end in engagement Withan' inner sur` face 'of the sheet 8. Accordingly, relative movement between the fabric 3 andthe back-ff iiigisprevented.i` p l. Theprovision of a definite spaced relationship betvveenlthe fabric and -baclringfinsures Y sufficient space between them'sothat plastic material Will ,completely encase the fabric and alsothat the fabric shall be maintainedin. substantially the plane of greatestiisefulness inthe hardenedplastic material; VIn general,

the fabric: should be imbedded" in the plastic material at a distance from' the bottoni thereoffequal to approximately, one-third ofthe depth of the material.

The 'stilfeningstrips sheet 4fabric 3v and securingjineans 10 are assembled'in a shop and are transported as a unit to the Walls Aor supportingV structure to which` the.Y base is to be applied. By providing aunitary' baseV for ready application tosuch support!A ing structures, the trouble incident to` sepathe structure and securing themlinqplace in situ iseliininated.- Y* Rigidityinihandling the basefis obtained bythe presence of thestiffening strips 19.. The strips are'gpreferably given a thickness equal to the thickness lof laths ordinarily used iiibuilding constructions'. f By provid-: ing such stiifeningstrips the she'etswS and fabric` arespaced the same distance `from the-supporting frames yasthough a layerof lath were interposed. The use of frames 'of special dimensions or Vthe use of specially sized timbers and supports are Vnot necessary for accommodating the` structures to the use of bases for plastic materials since thestif:V fening strip 9 Voccupiesjthe` spacevnormally allotted tolaths; Y Y 'y In l applying such basesl to supporting structures, fastening means are securedto, thestiffening strips andthe supporting structures. Where the supportingstructures 'are sheets 8, the stiffening members 9 and into y .l the timbers l? M .Since the nails" only pass through Vthe sheet 8` and the stiffening strips slight-relativejinovement betweenv timbers 417 Vand the v Vtend into'the body of hardened plastic material, forces applied to them are transmitted to the hardened plastic material With deleterious effect.

In my construction a slight amount of relative movement may take' placebetvveen theA timbers 17 the nails 18 and the hardened body v19 Without stressing the latter since the -stiifening stripsQ andsheet Sinay b e slightly deformed Without severely straining, the

ThegfabricB-may be of any form of Wire netting or metallic lath having open meshes between intersecting metallic strands Y and it may be formed Aby perforating, Weaving or welding as desiredi4 For tliepurpose ofy developing thev full"v reinforcing value' of the steel fabric ,in accordance With lthe established V'engineeringpractice "of overlapping adjacentedges'ofthe fabric, it is contemplated that the area of the'steel fabric may.

- The sheet-s 8 may be metal,paper,` cloth or; Otherniate'rial 'suitable for` supporting the plastic JVmaterial I before the* latter adheres. Such bases for plastic materialsare used for retaining and/ or 'reinforcing Vplastic mate4 mails, and for providing .sound-deadening,-

fireprooiing, insulating, and Waterf proofing barriers `in buildings. s :The base is adapted forfus'eiwith'a Widevariety ofplastic mate-` Y rials, such as plaster,'1'stucco,concrete, r gypsum A'and like materials. Such materials may bed applied tothe. base by pouring, spreading-spraying or 'troWeli'ng for forming'interioror exterior Walls, ceilings, floors andthe like. f Y 1 .Referring to Figure- 3, securing means E20 havetheirlends .21 completely imbedded in' the p StieningstripS 9 by driving -the nails downwardly-through the sheet 8 and stiffening strip 9 against a deflecting member. such as an anvil'fnot shown); The other end 22, of the nailfis bent around they fabric 3y to space itfromthe sheet 8. j i lReferring to Figure 4, the fabric 3 may be attached to `tlie'sheet 8 andstiifeningstrip 9 by staples'V 24: ,which straddle a strand of the fabric. 'lhe ends ofthe staples 24 penetrate the'sheet'S and stilfening strips 9. The outer ends 25 of the 'staples 'are clenched Vto lthe in ai@ ,form of embersiafasteaing means; f Strips-9' By drawing' thelgs- T26 of the Vsuch-as nails`18 are driven" through the staples together intermediatethe fabric 3 and the sheet 8, the latter are Vheld definite spaced relation. l. l e v In-.Figure 5 I have illustratedafform of my inventionin Whichonly-a fabricand sheet S'are ujtlized,stiffening stripsbeing omitted.l ln this form ofthe invention; vvhirchiis'i-other-` Wi'seithe samel asthat shown inFigure 2,'the

securing lnails are "provided with the bentsteers the fabric 3 and the ends 31 are curved to bear against the inner surface ofA the wallboard 27, thereby spacing the fabric and wallboard.

Referring to Figure 7, the bent portions or the heads l2 of ther fasteners shown in Figure 5 of the invention and the sheetV 8' may be covered by a sheet 32 of covering material,

an example of which is tar paper. This construction gives a double backing vto the base.

While I have shown and described specific forms of securing means in connection with the several embodiments of the invention, itis to be understood that other forms of secur- 1 ing means may be substituted for the specific forms shown and that suchsubstitutions are contempleted within the spirit of theV invention. Y f 1 i While I have shown and described certain present preferred embodiments of the invention, -it is to be understood that it may be otherwise embodied Without departing from the spirit of the invention or the scope of the appended claims.

I claim:

l; A unitary base for 'plastic materials comprising a fabric, a backing, vand wire staples for securing the fabric and backing together, said securing staples having a portion forA maintaining aspaced `relation between all parts of the fabric andthe backing.

2. A unitary base for plastic materials comprising a fabric, a backing and Wire staples forsecuring the fabric and backing, said securing staples comprising integralmeans for maintaining aspaced relationbetweenall parts of the fabric and backing.

3. A unitary base for plastic materials comprising a fabric, a backing, and wire staples extending through-the backing and engaging the fabric forsecuring the fabric and Vbacking together, said securing staples having a portion for maintaining a spaced relation between all parts of the fabric `and backing.

4. A unitary base for plastic 'materials comprising a fabric, a backing, means eX,-

tending through a tightly fitting'hcle in the backing and engaging the fabric for securing the fabric andrbackingtogether, and means interposed between the fabric and backing for maintaining Va spacedrelation between'them. n i

5. A unitary base for plastic' materials comprising a fabric, a backing, and securing spaced openings in they backing for holding the fabric and backing together,A a portion body of hardened @acusada-ng means' bsageseaiveupbhf i a surface o f the backingremote from the fabric 1 'andi 'another porticnv L being" effective upon "a'jcl'ser4 surface' ofthe backng'whereby the backing and fabric-'are held infdenite spacedrelation." 1'

6; Ak unitaryy stffenng-fnieans, and separate" means :ex-q tending through a pluralityl of spacedppe'ningsin i the backing for" securing the @fabric to the ,stiffening means and-for maintaining a spaced lrelationshipbetween the backing Y and the fabric; Y

7. A unitary base for plastic materials base for plastic materials comprising afabr1c-,- a backing comprising ai e comprising a; fabric, a backing comprisf ing stiifening means, securing means rengaging the 'fabricv andthe stiifening means for securing the backing and fabric together and in spaced relationship to one another, whereby means for securing the base to a supporting structure and cooperating with the stiffening means are free to move relative to the fabric without materially stressing a l plastic material embedding the fabric.

8. A base for plastic materials comprising a fabric, a backing and kmeans for securing the fabric to and in entire spacedrelationship with the backing, said backing comprising a substantially continuous sheet ofpaper wood. secured thereto'by said fabric-backing securing means. y j n 9.l A base for plastic materials comprising a fabric, a backing and means for securing the fabric to and in entire spaced relationship' with the backing, said packing comprising a substantially continuous sheet ofpaper for `holding plaster and stiffening strips of Wood having substantiallyl the thickness of commercial lath secured theretoby said fabricbacking securing means and by which the' base Imay be readily attached to a supporting Y for holding plaster and stiffening strips-.of

ics

taining a spaced relation between all parts of i the spaced members and the backing.

12. A unitary base for plastic materials comprisinga plurality of spaced longitudinal '3i-5l l stiifening and reinforcing members, abackt d g th o g1 a plumlt o# king, and staples for securing thelongit'udinal means exen in -ru iKA yv i members and backing together, said staples having integralmeans associated therewith ship between a all. parts. of thei longitudinal members'.` and the backing. u Y

- 13.'A unitary base `for plastiof materials comprising ya plurality" of Vspaced transverse and longitudinal stiening andv reinforcing members, a backing, and staples having integral means vfor securing the backing and the longitudinal and transverse members t0- gether andin'entire spaced relationship Withrespectto each other. d e

Injtestimony whereof I have hereunto set my'hand;A f Y Y GEORGE E. LAND.

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